Each curve was adjusted for covariates except age (which shared excessive colinearity with the age-based categories) and was adjusted for comorbidity strata.Hypnotics' association with mortality or cancer: a matched cohort studyBMJ Open. 2012;2(1):e000850.LinkOut - more resourcesFull Text SourcesHighWireEBSCOEurope PubMed CentralPubMed CentralPubMed Central CanadaOther Literature SourcesAccess mor